Update python version for OSX and update the release note.

docs/en_US/release_notes.rst

@@ -11,6 +11,7 @@ notes for it.
 .. toctree::
    :maxdepth: 1
 
+   release_notes_7_1
    release_notes_7_0
    release_notes_6_21
    release_notes_6_20

docs/en_US/release_notes_7_1.rst

@@ -0,0 +1,33 @@
+***********
+Version 7.1
+***********
+
+Release date: 2023-05-01
+
+This release contains a number of bug fixes and new features since the release of pgAdmin 4 v7.0.
+
+Supported Database Servers
+**************************
+**PostgreSQL**: 11, 12, 13, 14 and 15
+
+**EDB Advanced Server**: 11, 12, 13, 14 and 15
+
+Bundled PostgreSQL Utilities
+****************************
+**psql**, **pg_dump**, **pg_dumpall**, **pg_restore**: 15.2
+
+
+New features
+************
+
+
+Housekeeping
+************
+
+
+Bug fixes
+*********
+
+  | `Issue #5777 <https://github.com/pgadmin-org/pgadmin4/issues/5777>`_ -  Fixed an issue where the browser tree state is not remembered when reopening pgAdmin.
+  | `Issue #5820 <https://github.com/pgadmin-org/pgadmin4/issues/5820>`_ -  Fixed an issue where collation was set to none if we remove it while creating partitioned table.
+  | `Issue #6075 <https://github.com/pgadmin-org/pgadmin4/issues/6075>`_ -  Ensure that the save button is enabled when registering a new server fails due to an API error.